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17
E
Allowable
′
smooth, at, stable surface that is level in both
ransport Lock switch to the right
′ (9m) apart along the laser beam, mark
Position the laser toward the rst end of the same
Adjust the height of the laser so the center of the
8.
Directly above or below
a
, mark
c
along the laser
beam (Figure
E
3
).
9.
Measure the distance between
a
and
c
.
10.
If your measurement is greater than the Allowable
Distance Between
a
and
c
for the correspond-
ing Distance Between Walls in the following table,
the laser must be serviced at an authorized service
center.
Distance
Between Walls
Allowable Distance
Between
a
and
c
30’ 1/4”
40’ 5/16”
50’ 13/32”
Distance
Between Walls
Allowable Distance
Between
a
and
c
9.0 m 6.2 mm
12.0 m 8.3 mm
15.0 m 10.4 mm
Vertical Beam
Checking the vertical (plumb) calibration of the
laser can be most accurately done when there is a
substantial amount of vertical height available, ideally
30’ (9m), with one person on the oor positioning
the laser and another person near a ceiling to mark
the position of the beam. It is important to conduct a
calibration check using a distance no shorter than the
distance of the applications for which the tool will be
used.
1.
Place the laser on a smooth, at, stable surface
that is level in both directions (Figure
F
1
).
2.
Move the Power/Transport Lock switch to the right
to turn the laser ON.
3.
Press and to turn on both vertical beams.
4.
Mark two short lines where the beams cross
a
,
b
and also on the ceiling
c
,
d
. Always mark
the center of the beam's thickness (Figure
F
2
).
5.
Pick up and rotate the laser 180º, and position it
so the beams line up with the marked lines on the
level surface (
e
,
f
) (Figure
F
3
).
6.
Mark two short lines where the beams cross on the
ceiling
g
,
h
.
7.
Measure the distance between each set of marked
lines on the ceiling (
c
,
g
and
d
,
h
). If the mea-
surement is greater than the values shown below,
the laser must be serviced at an authorized service
center.
Ceiling Height
Allowable Distance
Between Marks
8’ 1/16”
10’ 3/32”
14’ 1/8”
18’ 5/32’
30’ 1/4’
Ceiling Height
Allowable Distance
Between Marks
2.5 m 1.7 mm
3.0 m 2.1 mm
4.0 m 2.8 mm
6.0 m 4.1 mm
9.0 m 6.2 mm
90º Accuracy Between Vertical Beams
Checking 90º accuracy requires an open oor area at
least 33’ x 18’ (10m x 5m). Refer to Figure
G
for the
position of the laser at each step and for the location of
the marks made at each step. Always mark the center
of the beam's thickness.
1.
Place the laser on a smooth, at, stable surface
that is level in both directions.
2.
Move the Power/Transport Lock switch to the right
to turn the laser ON.
3.
Press to turn on the side vertical beam.
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